Jawaban:
C. {(2,-3)}
Penjelasan dengan langkah-langkah:
4x -y=11
2× +3y= -5
4x +6y= -10.. dikurang-
-7y =21
[tex] y = \frac{21}{ - 7} [/tex]
y= -3
4 x -y = 11
4 x -(-3) = 11
4 x +3 = 11
4 x =11 - 3
4 x = 8
[tex] \times = \frac{8}{4} [/tex]
x = 2
jadi={(2,-3)}
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Jawaban:
C. {(2,-3)}
Penjelasan dengan langkah-langkah:
4x -y=11
2× +3y= -5
4x -y=11
4x +6y= -10.. dikurang-
-7y =21
[tex] y = \frac{21}{ - 7} [/tex]
y= -3
4 x -y = 11
4 x -(-3) = 11
4 x +3 = 11
4 x =11 - 3
4 x = 8
[tex] \times = \frac{8}{4} [/tex]
x = 2
jadi={(2,-3)}
maaf kalau saya salah ya